Integer Overflow or Wraparound Affecting libjq1 package, versions <1.7.1-160000.3.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-SLES1600-LIBJQ1-17978006
  • published15 Jul 2026
  • disclosed7 Jul 2026

Introduced: 7 Jul 2026

CVE-2026-41257  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 libjq1 to version 1.7.1-160000.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libjq1 package and not the libjq1 package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

jq is a command-line JSON processor. In 1.8.1 and earlier, the jq bytecode VM's data stack tracks its allocation size in a signed int. When the stack grows beyond ≈1 GiB (via deeply nested generator forks), the doubling arithmetic overflows. The wrapped value is passed to realloc and then used for a memmove with attacker-influenced offsets.

CVSS Base Scores

version 3.1